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2 698 929

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IPC

E21B33/138(2006-01-01)

E21B43/32(2006-01-01)

C09K8/502(2006-01-01)

(21) (22)

Application

2018132265, 2018-09-11

(24)

Start date

2018-09-11

(22)

Actual filing date

2018-09-11

(45)

Published

2019-09-02

(72)

Inventor

Khlebnikov Vadim NikolaevichLikhacheva Natalya ValerevnaVinokurov Vladimir ArnoldovichGushchin Pavel AleksandrovichIvanov Evgenij VladimirovichCheremisin Aleksej NikolaevichZobov Pavel MikhajlovichGazarov Karen RobertovichGushchina Yuliya Fedorovna

(73)

Holder

Nekommercheskoe Partnerstvo Gubkinskogo Universiteta" Gubkinskogo Universiteta")

METHOD FOR INSULATION OF GAS INFLOWS IN PRODUCTION WELLS Russian patent published in 2019 - IPC E21B33/138 E21B43/32 C09K8/502

Abstract RU 2698929 C1

FIELD: oil and gas industry.

SUBSTANCE: method includes pumping into the well of an insulating compound obtained by dispersing a hydrophobic clay material in fuel oil in the following ratio, wt%: hydrophobic clay material – 1.0–3.0, fuel oil – balance up to 100. Then the insulating compound is squeezed into the formation by forcing fluid, after which the well is exposed in a state of rest for at least 12 hours. Then the well is put into operation and brought to normal mode. Note here that pumping of insulating compound and bushing fluid is performed at pressure not higher than formation rupture pressure.

EFFECT: technical result consists in achievement of selective control of permeability of inhomogeneous formation for gas with invariability or increase of permeability for oil.

1 cl, 1 ex, 2 tbl

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RU 2 698 929 C1

Authors

Khlebnikov Vadim Nikolaevich

Likhacheva Natalya Valerevna

Vinokurov Vladimir Arnoldovich

Gushchin Pavel Aleksandrovich

Ivanov Evgenij Vladimirovich

Cheremisin Aleksej Nikolaevich

Zobov Pavel Mikhajlovich

Gazarov Karen Robertovich

Gushchina Yuliya Fedorovna

Dates

2019-09-02—Published

2018-09-11—Filed